Method backend

tfjs-core/src/engine.ts:211–229

()

  }

  get backend(): KernelBackend {
    if (this.pendingBackendInit != null) {
      throw new Error(
          `Backend '${this.backendName}' has not yet been initialized. Make ` +
          `sure to await tf.ready() or await tf.setBackend() before calling ` +
          `other methods`);
    }
    if (this.backendInstance == null) {
      const {name, asyncInit} = this.initializeBackendsAndReturnBest();
      if (asyncInit) {
        throw new Error(
            `The highest priority backend '${name}' has not yet been ` +
            `initialized. Make sure to await tf.ready() or ` +
            `await tf.setBackend() before calling other methods`);
      }
      this.setBackend(name);
    }
    return this.backendInstance;
  }

  backendNames(): string[] {
    return Object.keys(this.registryFactory);